Backing Up Tiny Tiny RSS Database (Docker)

I have a simple script that will dump the database and prune older backups. This is run daily by a systemd timer.

The script:

#!/bin/bash

BACKUP_LOCATION=/root/backups
# Backup

/usr/bin/docker exec -t ttrss-docker_db_1 pg_dumpall -c -U postgres | /usr/bin/xz > $BACKUP_LOCATION/ttrss_`date +%Y%m%d%H%M%S`.sql.xz

# Prune backups older than 30 days
/usr/bin/find $BACKUP_LOCATION -maxdepth 1 -name "ttrss_*.sql.xz" -type f -mtime +30 -delete

The systemd service:

# /etc/systemd/system/ttrss-backup.service
[Unit]
Description=Backup ttrss

[Service]
Type=oneshot
ExecStart=/usr/local/bin/ttrss_backup.sh

The systemd timer:

# /etc/systemd/system/ttrss-backup.timer
[Unit]
Description=Timer to schedule backups for ttrss

[Timer]
OnCalendar=daily
RandomizedDelaySec=30minutes
Persistent=true

[Install]
WantedBy=timers.target

PS:

After I setup this backup system, the official docker-compose setup was changed to include an automatic back up feature. Since the machine this is hosted on has plenty of disk space, I leave them both enabled.